Water control for flush tanks



May 7, 1929. w. FRANKENBERGER 1,711,563

WATER CONTROL FOR FLUSH TANKS Filed March '19, 1925 4 FIBJ.

INVENTOR.

B JAWQ H s ATTORNEYS.

rat-mica May 1, 1929.

"UNITED "STATES WILLIAM ramxnmmaeaa, or LOUISVILLE, xan'rucxrfassmuoa -'ro s'rumaan PATENT o F1ca.

SANITABY MANUFACTURING COMPANY,.A CORPORATION OF NEW JERSEY.

WATER oou'rnor. Foarmsn ranks:

,a iincatm med am 19, 1925.; semi No. 16,644.

This invention relates to flush tanks: and

more particularly toia water supply control for such tanks.

Heretofore the closing thereof and an object of this inven-' tion is to provide a valve for flush tanks of such construction that all friction noises due to closing of the valve will be eliminated. 1

A still further object isto provide a flush tank having a water control which will op crate quietly and efficiently, be cheap to manufaeture and rugged in construction.

These and other objeetswhich will be ob;

vious to those skilled inthis particular art are accomplished by'means of this 1nvention, one embodiment of which is shown for the. purposes of illustration in the accom panying drawings in which Figure lis a transverse sectional view through a. flush tank provided with one form" of. this invention. Fig. 2 is a sectional view 7 through the center of the'supply control valve shown in Fig. 1, with part-of the hush tube-shown in elevation. lig. 3yis"a view of apart of the supply controlvalvechamber in section showing the connected end of the refill tube in elevation and 4 is a transveg-se sectional view on the line 4-4 of Fig. 1 w th certain of the operating elements remov d.

The particular embodiment of this invention which has been chosen for the purposes of illustration is shown in conjunction with an ordinary. flush tank 5 having a water supply control valve 6 adapted to be automatically operated by the usual float 7 and associated mechanism. The valve 6 comprises a casing positioned at the top of a supply tube 8 which has the usual valve port 9 formed at the top thereof within a valve. chamber 10. A valve body '11 is slidably mounted in a bore 12 5 formed at the top of the valve chamber in axial alignment with the seat of the valve port 9, and the valve body is adapted to be reciprocated by the float 7 toward and away from the valve seat to open and close the valve, as is well-known in this particular usual supply valve for I 5 flush tanks, which is automatically operated by the well-known float controlled mech art. "A. leather valve seat engagingface' 13 is formed on the bottom of the valve body and engages the valve seat so as to form a water-tight joint when theport is closed.

I The "objectionable"hissing noise which is noticeable with the ordinary type of supply valve i'scaused by the closing of the valve against afull flow of water passing through the valve port during the closing thereof. Inorder to overcome this objection and to provide a valveconstruction which .will be quiet in operation; I preferably provide the supply tube 8 withja port or orifice 14.- below the valve port 9, and axiallyaligned therewith. A plunger chokeor plug 15 which is smaller in diameter than the (port '9 is threaded to the lower face of the valve body 11 and extendsdownwardly through the valve port.

The choice is provided with albeveled lower I end16 which extends through the orifice 14 of the'su ply closed position.

The provision of such 'a 'jchoke having a beveled'end which'cooperates with the orifice 14 constitutes a means for graduallyretarrh ing the flow of water. through the valve "port before the valve body entirely cuts off "tubewhenthe valveis' in the water supply and this gradual reduction in the flow prior'to" actual closing of the valve port eliminates the objectionable noise which has hitherto-beencaused by the actionof the valve'body in closing the port .while a full flow of 'waterwas passing therethrough. The reduction 'of 'flow through the port' 9 results from the reduction of flow through the port 14; because of the reduced pressure in thechamber between the ports.

Another source of objectionable noise in structures of this type has been the rush of a solid column of water through the hush tube 17 from the valve chamber to the bottom of the flush tank. By providing a suitable'form of opening through at least a part of the hush tube, the friction of such a rushing column of water can be reduced so as to eliminate all noise and provide a structure which will operate quietly. In order to accomplish this result, I preferably form a spiral channel 18-adjacent the lower end of the hush tube. Such a channel can be conveniently formed by inserting a worm 19 within the lower end of the tube as shown in Fig. 2. The result of such a device is the provision of a spiral channel of reduced diameter which prevents the rush of a solid column 'of water from thejvalve body into thetank and thereby reduce the friction noises which hitherto accompanied such an operation- .11:

"A refill tube'20extendsifrom the valvc chamber (5 into the usual overflow tube- :21.

Hitherto these refill tubes were providedcby Letters Patent is:

with threaded ends which were attached to the valve chamber by beingthreaded into a suitable opening formed therein. The formation of threads upon the refilltube, which'is of comparatively small rgauge, "materially weakened it atithat point with thefresuitthat in assembling thestructure, a'large loss was sustained through breakage of the rehll tubes at their point of connection with the valvechamber. "ln order to form a more rugged fconstruction and at the same time provide a device which is more easily assent-- bled, I provide a swivel nut 22 which is held on the end of the refill tube by a flange23.

The valverchamber is provided with a bore 24-extending through the wall thereof and through a lug 25 formed on the outside oi; the valve chainber wall and having. threads for engaging the swivel vnut-22 by means of which therefill tube is connected to the valve chamber, see Fig. 3. vSuch a construction provide'sa rugged s tructure and enables the i adjustment of therefill tube without any strain being applied thereto.

In order to reducethe friction noisesgby controlling the fiowtln oughthe refill tube. and in order to prevent va surplus of water flowing through the refill tube with the re-v,

sultant waste, I provide a set screw 26 threaded inv a bore 27 commun'icatingwith the opening 24 leadingfrom thevalve chamher. to therefilltube..- By: properly positioning the regulating screw 26 the amount of water flowing through the refill tube'can be accurately controlled so that -.no surplus water will be passed therethrough. In addi tion, therate of flow through the tube can be accurately controlled so: as to eliminate the traction noises thereof, which have hitherto been present.

tank to the associated bowl.

\VhatTclaim as new and desire to secure 1; "A valve fo'r 'tiush tanks having in combination a valve port, a valve seat surround ing said porfla valve body cooperating with said seat to open and close said "poi't,.a second port spaced from said first "port and meanscooperating with said seeondport for reducing the flow through said port during closing movement of said valve body. 2. A-valve for tiush tanks having in combination a supply pipe provided with aligned ports, a valve body adapt-ed topper! and close one of said ports and achoke carried by said valve body and cooperating with said other port to reduce the flow] therethroughduring closing movement of said valve bodyj.

A valve for flushtankshavim in conibinatlon a supply pipe provided wi h'aligned v ports, a valve body adapted to, open and close one o fsaid ports;". a ;choke plug onsaid valve body extending through thef'otlterport and provided with; a tapered end; cooperat- WILLIAM FRANKENBERGER.

The usual ball valve 30 provided for controlling the flow of water from'theaflush 

